Replace the faulty stock catalytic converter with the all new aFe power direct-fit cat replacement for the 2005-2011 Toyota Tacoma with V6-4.0L engine. This cat replacement is constructed of mandrel-bent, 100% MIG welded stainless steel for strength and durability. This product is an EPA Compliant catalytic converter and 3/8" thick flanges for a secure hassle-free installation. This cat replacement is designed as a one piece system that retains the factory O2 sensor and hanger locations for a direct bolt-on and go solution.